<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/test.css">
</head>
<body>
    <div class="box1">
        <div class="box2"></div>
        <div class="box3"></div>
        <div class="box4"></div>

        <div class="box5"></div>
        <div class="box6"></div>
        <div class="box7"></div>

        <div class="box8"></div>
        <div class="box9"></div>
        <div class="box10"></div>

    </div>

</body>
</html>